1/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <wchar.h>
20
21#define __need_ptrdiff_t
22#include <stddef.h>
23
24#ifdef WCPCPY
25# define __wcpcpy WCPCPY
26#endif
27/* Copy SRC to DEST, returning the address of the terminating L'\0' in
28 DEST. */
29wchar_t *
30__wcpcpy (wchar_t *dest, const wchar_t *src)
31{
32 wchar_t *wcp = (wchar_t *) dest - 1;
33 wint_t c;
34 const ptrdiff_t off = src - dest + 1;
35
36 do
37 {
38 c = wcp[off];
39 *++wcp = c;
40 }
41 while (c != L'\0');
42
43 return wcp;
44}
45
46#ifndef WCPCPY
47weak_alias (__wcpcpy, wcpcpy)
48#endif
49